HOC C'HOl.KHA: PHKVKNTIOX AND TKKATMENT. 



11 



the skin of the belly, in the region of the Hanks. In health these 

 glands are of a rather light-grayish color: in cases of cholera they 

 may be enlarged and red, and in severe cases they may appear almost 

 black. If cut through with a knife it will be found generally that 

 the outer portion or rind of the gland is affected to the greatest 

 extent. Other lymphatic glands which undergo similar changes are 

 found in the fatty tissues at the angle of the lower jaw and in the 

 thin membrane which holds the intestines together. 



SUMMARY OF POST-MORTEM APPEARANCE. 



To recapitulate, the important changes found in the carcass after 

 death from hog cholera are as follows: 



1. Purple blotches on the skin. 



2. Blood-COlored spots on the lun^s, on the surface of the heart, on the 

 kidneys, and on the ouler surface and inner lining of the intestines and the 

 stomach. 



3. Reddening of the lymphatic glands. 



4. Enlargement of the spleen, in acute cases. 



5. Ulceration of the inner lining of the large intestine. 



Any one or all of these changes may be found in a hog which has 

 died from hog cholera. It is rare to find all in any one case. In the 

 lingering or chronic cases of hog cholera it is usual to find the intes- 

 tinal buttonlike ulcers, while the blood-colored spots described above 

 are. as a rule, found only in the acute cases. 



Fig. 6. — InU'stiue of cholera hog, showiug ulcers. (After Hutyra aud Marek.) 



